Chemistry Organic Chemistry

Rotamers or conformers arises due to free rotation along σ - bond.

Compounds which are more acidic than phenol

Theoretically; 1 mol benzene gives 1 mol toluene

Moles of benzene = $\frac{10}{78}mol$

Moles of toluene (Theoretical) = $\frac{10}{78}mol$

Mole of toluene (observed) = $\frac{9.2}{92}=0.1mol$

% yield = $\frac{0.1}{\frac{10}{78}}*100$

= 78%

Aniline being a base does not give Friedel Craft reaction because it react with AlCl₃ used in Friedel Craft reaction.

So; A is H₃PO₂ & B is CH₃ – CH₂ – Cl

3-Ethylhex-3-ene will not show stereo isomerism

Methylhex-1-ene will show steroisomerism (optical isomerism)

Since it has chiral carbon.

3, 4-Dimethylhex-3-ene will show stereoisomerism (Geometrical isomerism)

4-Methylhex-1-ene will show stereoisomerism (optical) since it has one chiral carbon

  $C{H}_3-C{H}_2-C{H}_2-C-N{H}_2\to \pi -\mathcal{l}pconjugation$  

              $C{H}_3-C{H}_2-CH=CH-C{H}_2-N{H}_2\to$ No conjugation

          $C{H}_3-C{H}_2-O-CH=C{H}_2\to \pi -\mathcal{l}p$     conjugation

Due to the larger acid dissociation constant (Ka) sulphuric acid acts as an acid and HNO₃ acts as a base.

Only (A) and (B) structures have resonance effect. In (A) benzyllic resonance and in (B) allylic resonance of carbocation.